CONTENTS OF VOLUME 54 



Bulletin 



No. Tagcs 



75. Fluctuations in the Fisheries of State of Michigan Waters of Green- 



Bay. By Ralph Hile, George F. Lunger, and Howard .T. Buettner. (Issued 

 April 1953.) 1-34 



76. A Contagious Disease of Salmon Possibly of Virus Origin. By R. R. 



Rucker, W. J. Whipple, J. R. Parviu, and C. A. Evans. (Issued May 

 1953.) -- 35-46 



77. Spawning of Yellowfin Tuna in Hawaiian Waters. By Fred ( '. June. 



(Issued August 1953.) 47-64 



78. Estimation of Growth Rate in Animals by Marking Exn riments. By 



Milton J. Lindner. (Issued August L953.) 65-69 



79. Stabilization of the Phosi'ii mi: Ratio ok Sea Water by Freezing. By 



Albert W. Collier and Kenneth T. Marvin. (Issued July 1953.) . 71-76 



80. Phosphorus Exchange in Marine Phytoplankton. B\ Theodore R. 



Rice. (Issued August 1953.) 77-S9 



SI. Food of Yellowfin Tuna in the Central Pacific. By John \Y. Reintjes 



and. Joseph E. King. (Issued October 1953.) 91-110 



82. Zooplankton Abundance i\ the Central Pacific. B\ Joseph E. King 



and Joan Demond. (Issued October 1953.) 111-144 



83. Nature op Variability in Trawl Catches. By Clyde C. Taylor. (Issued 



September 105:5.) 145-166 



84. Effect of Dissolved Organic Si bstan< es on Oysters. Bj Albert 



Collier, S. M. Ray, A. W. MagniizUy. and Joe (). Bell. (Issued December 

 1953.) 167 185 



85. Determining Age of Atlantk Shad From Their Scales. By James P. 



Cating. (Issued January 1 954.) .187-199 



86. Population Heterogeneity in the Pacific Pilchard. By Frances E. 



Felin. (Issued February 1954.) 201-225 



87. Biotic Influences Affecting Population ( I-rowth of Planktonic Algae. 



By Theodore R. Rice. (Issued February L954.) . 227-245 



88. Causes of Fluctuations in Abundance of Connecticut River Shad. 



By Reynold A. Fredin. (Issued March 1954.) 247-259 



ni 



